//
//  ICPotocal.h
//  Charles
//
//  Created by Charles on 2017/6/30.
//  Copyright © 2017年 charles. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol Iterator <NSObject>

- (BOOL)hasNext;
- (id)next;

@end

@protocol Menu<NSObject>

- (id<Iterator>)createIterator;

@end
